Home / 7,621.24-10,540.50-6,835

Finding the Fourth Proportional to 7,621.24, 10,540.50 and 6,835

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Solution

The fourth proportional to 7,621.24, 10,540.50 and 6,835 is: 9,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.24 : 10,540.50 = 6,835 : x
  2. Step 2: Convert to fraction form
    7,621.24/10,540.50 = 6,835/x
  3. Step 3: Cross multiply
    7,621.24x = 10,540.50 × 6,835
  4. Step 4: Simplify right side
    7,621.24x = 72,044,317.50
  5. Step 5: Solve for x
    x = 72,044,317.50/7,621.24
  6. Step 6: Final answer
    x = 9,453.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.